US PATENT SUBCLASS 434 / 222
.~ Code communication

Current as of: June, 1999
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434 /   HD   EDUCATION AND DEMONSTRATION

219  DF  OCCUPATION {8}
222.~ Code communication {1}
223  DF  .~.~> Visual signalling

DEFINITION

Classification: 434/222

Code communication:

(under subclass 219) Subject matter relating to a system such as Morse code signals for transmitting information.

SEE OR SEARCH CLASS

116, Signals and Indicators, appropriate subclasses for mechanical signalling apparatus.

178, Telegraphy,

113, for telegraph codes; and subclass 115 for electrical learner's instruments.

246, Railway Switches and Signals, appropriate subclasses for operative railway signals.

340, Communications: Electrical, for miscellaneous electric signalling.